OBD2 Error Code P0352: How to Fix It

Q: What causes OBD2 error code P0352?

P0352 is typically caused by a faulty ignition coil B, damaged wiring to the coil, corroded electrical connections, a failed PCM/ECM, or sometimes a fouled spark plug that overloads the ignition coil.

Q: Can I drive with error code P0352?

You should avoid driving with P0352 as it indicates cylinder 2 is misfiring. This can cause damage to the catalytic converter, reduced fuel economy, and poor engine performance. Address the issue promptly.

Q: How much does it cost to fix P0352?

Repair costs typically range from $150-$400. An ignition coil costs $50-$200, spark plugs cost $10-$30 each, and labor is usually 1-2 hours. Costs vary by vehicle make and accessibility of components.

Q: Will P0352 cause my car to fail emissions testing?

Yes, P0352 will likely cause your vehicle to fail emissions testing because engine misfires increase harmful emissions. The check engine light must be off and no codes present to pass most emissions tests.

Q: How do I know if it's the ignition coil or spark plug?

Test the ignition coil with a multimeter to check resistance values. If the coil tests within specifications, check the spark plug for fouling or damage. Swapping coils between cylinders can also help isolate the problem.

Abstract

Error code P0352 indicates a malfunction in the ignition coil B primary or secondary circuit, which can cause engine misfiring, rough idling, and reduced performance. This code typically appears when the ignition coil for cylinder 2 has failed or has electrical connection issues.